Cannot Get Transparent Object to show up in reflections
This may be an answer from 2.9 manual...

Screen Space Reflections and Ambient Occlusion are not compatible with
Screen Space Refraction; they will be disabled on the surfaces that
use it. Surfaces that use Screen Space Refraction will not appear in
Screen Space Reflections at the right place. Surfaces that use Screen
Space Refraction will not cast Ambient Occlusion onto other surfaces.

I guess I must use cycles...